Women's No-show Five Fingers Separate Invisible Toe Socks Ship by USPS With Tracking ID, Aprox 10 days delivery. One size fits US shoe sizes 4-7(Sock size 7-10) Non-slip grip design, not too tight or too loose, feel like together with your feet. keep fingers separating and dry, prevention Hotspot and Smelly feet. This product is unique for its no-show design, which ensures the socks do not show whether you wear running shoes, boat shoes, or dress shoes. It is most popular among fashionistas.